Congratulations on the launch. Its good to see a hardware page, stock in the shop, and availability on a couple of online retailers, and its still only a couple of hours after the launch (which seemed to be at noon, western Europe time).

Also congratulations on the prominent warning about compatibility with 5V shields.

When you have a moment, please remember set the github repository to public, and update the "source code to the Arduino software is hosted by GitHub" link. Currently the link points to the 1.0.1 IDE source.

There's a very interesting 14 pin Ethernet RMII connector on the schematic, which I can't seem to locate anywhere in the photo. An ethernet shield using the RMII interface would be pretty nice (with a good library), rather than the W5100's rather inefficient SPI-based protocol.

I also noticed there's a new 4 pin debug header with nice, large 0.1 inch spacing, and the (way too small) 10 pin ARM debug is on the schematic, but not populated in the photo.

The 16U2 is no big surprise, but it's nice to see it controls both the erase and reset pins. Presumably it'll have slightly different firmware than the Uno version, to sequence the erase pin?

Something I didn't see on the schematic or in the photo is the Atmel dataflash chip that was present on the developer beta test boards. I guess it's safe to say that didn't make it to the final design?

These aren't urgent questions... just me thinking out loud about initial impressions seeing the schematic and a high-res photo for the very first time.

It may not be wrong. Mouser often has cheaper prices than anywhere else for Arduinos. Arduino Mega2560 for ~39.00 USD: http://www.mouser.com/ProductDetail/Arduino/A000067/?qs=sGAEpiMZZMt0re6d%252b2Rx9v%252bc%252bQEIaOW9

Well, for 39.99 I couldn't resist. Just put one on order - site is showing them on backorder. Hopefully it won't be too long. Thanks for the info guys.